It's tough to make an accurate assessment from a few photos, but here are a few ideas. Others may chime in with their opinions too.
I think your Great Canadian was probably fiberglassed when it was built, and it may have had more 'glass added to it since then. I've never been in the market for one of these so don't know as well as some others might, but I don't think these are highly sought-after (at least not like some of the historic builders or modern canoes from some of the true artisan shops). On top of all that, this particular Great Canadian looks like it might be in pretty rough condition even if it is still all intact. Most added decals, even one from the Marines, will have no affect on value.
The other canoe, almost certainly not from 1898 but more likely from the teens to the 1930s or so, could be a fairly desirable model. It has open gunwales and long-ish decks. It's a stylish canoe and looks like attention was paid to finer details. The trim is likely mahogany, which is great. Without some detail shots, identifying its maker is problematic. It could be from any number of respected builders, likely from the northeastern US or the upper midwest. It's not a Morris. Could be Old Town, or possibly a very fancy (and rare) E.M. White, or.... many possibilities. Hanging as it is could have damaged some of its structure, but it appears that a bigger problem may be that its hull was fiberglassed at some point (this would have been a cedar-canvas canoe).It may not be 'glassed but it sure looks like it. If so, that dramatically devalues the canoe for most would-be buyers.
I wish I had better news, but I encourage you to post detail photos of the one with the long decks. With them, the maker and possibly the model probably can be identified, and watchers here can give a better assessment of its condition.
Michael
